118 lines
2.1 KiB
C++
118 lines
2.1 KiB
C++
/*
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* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _PACKAGE__HPKG__PRIVATE__HAIKU_PACKAGE_H_
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#define _PACKAGE__HPKG__PRIVATE__HAIKU_PACKAGE_H_
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#include <SupportDefs.h>
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#include <package/hpkg/HPKGDefs.h>
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namespace BPackageKit {
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namespace BHPKG {
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namespace BPrivate {
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// package file header
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struct hpkg_header {
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uint32 magic; // "hpkg"
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uint16 header_size;
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uint16 version;
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uint64 total_size;
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// heap
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uint32 heap_compression;
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uint32 heap_chunk_size;
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uint64 heap_size_compressed;
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uint64 heap_size_uncompressed;
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// package attributes section
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uint32 attributes_length;
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uint32 attributes_strings_length;
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uint32 attributes_strings_count;
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uint32 reserved1;
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// TOC section
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uint64 toc_length;
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uint64 toc_strings_length;
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uint64 toc_strings_count;
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};
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// repository file header
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struct hpkg_repo_header {
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uint32 magic; // "hpkr"
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uint16 header_size;
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uint16 version;
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uint64 total_size;
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// heap
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uint32 heap_compression;
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uint32 heap_chunk_size;
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uint64 heap_size_compressed;
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uint64 heap_size_uncompressed;
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// repository info section
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uint32 info_length;
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uint32 reserved1;
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// package attributes section
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uint64 packages_length;
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uint64 packages_strings_length;
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uint64 packages_strings_count;
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};
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// attribute tag arithmetics
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// (using 6 bits for id, 3 for type, 1 for hasChildren and 2 for encoding)
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static inline uint16
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compose_attribute_tag(uint16 id, uint16 type, uint16 encoding, bool hasChildren)
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{
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return ((encoding << 10) | (uint16(hasChildren ? 1 : 0) << 9) | (type << 6)
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| id)
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+ 1;
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}
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static inline uint16
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attribute_tag_encoding(uint16 tag)
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{
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return ((tag - 1) >> 10) & 0x3;
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}
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static inline bool
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attribute_tag_has_children(uint16 tag)
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{
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return (((tag - 1) >> 9) & 0x1) != 0;
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}
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static inline uint16
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attribute_tag_type(uint16 tag)
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{
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return ((tag - 1) >> 6) & 0x7;
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}
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static inline uint16
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attribute_tag_id(uint16 tag)
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{
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return (tag - 1) & 0x3f;
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}
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} // namespace BPrivate
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} // namespace BHPKG
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} // namespace BPackageKit
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#endif // _PACKAGE__HPKG__PRIVATE__HAIKU_PACKAGE_H_
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